The Nobel Prize-winning technology underpinning COVID-19 vaccines is also fueling a host of biotechs developing treatments for cancers, cystic fibrosis, and rare diseases.

This was one in a continuing line of moves that have put Kennedy's vaccine skepticism into public policy, though scientists say the vaccines are safe.

HHS canceled federal funding for mRNA vaccine development. Experts said this could affect our preparedness for future pandemics and innovations like cancer vaccines.